The name means “one of a kind,” and indeed, this consignment boutique stands alone in its assiduously selected assortment of high-end designs. The women’s shop has gems like mint McQueen dresses and Chanel jackets at discount prices. Menswear (a few steps down the street) ranges from YSL to Watanabe to Shipley & Halmos, with a nice selection of vintage tees to boot. Attentive service, often from the owners themselves, means accurate fitting, tasteful choices, and little wasted time.